Repair of Prestressed Concrete Girders with Carbon Fiber Reinforced Polymer Wrap

determinedenchiladaUrban and Civil

Nov 25, 2013 (3 years and 8 months ago)

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Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Repair of Prestressed
Concrete Girders with
Carbon Fiber Reinforced
Polymer Wrap
Christopher A. Toenjes, P.E.
Florida’s Turnpike Enterprise
chris.toenjes@dot.state.fl.us
Insert Your
Logo Here
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
45
th
Street Bridge
PGA Ramp Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Low Clearance Bridges
•45th St.
–Overpass Bridge
–Clearance = 14’-7¼”
•PGA Interchange Ramp Bridge
–Ramp Bridge in Trumpet Interchange
–Clearance = 15’-6”
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
August 11, 2004
•Nouthbound vehicle hits the 45th St.
Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
August 11, 2004
•Nouthbound vehicle hits the 45th St.
Bridge
–Significant damage to 2 of 6 girder (both exterior)
–Spallsup to 6.5’in length
–11 exposed steel tendons
–2 strands effectively lost tension
–Urgent, but traffic was not restricted
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
August 13, 2004
•Hurricane Charlie
•South bound over height vehicle hits PGA
Ramp Bridge
•Continued and hits the 45th St. Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Damage at PGA Ramp Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Damage at PGA Ramp Bridge
•4 of 6 girders had major damage
•North fascia beam
–12’long section of spalling
–22 exposed steel prestressstrands
–5 strands were severed
•MOT set up to keep traffic off of North
shoulder
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Damage of 45th St. Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Damage of 45th St. Bridge
•4 of 6 beams had major damage
–North fascia beam
•13’long section of spalling
•22 exposed steel prestressstrands
•11 strands severed
•Bridge was completely closed
•Declaration of Emergency was issued
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Consideration for 45th St Repair Method
•45th St. Bridge was scheduled for
replacement by Palm Beach County in 4 to
5 years
•Closing the Turnpike –NOT PREFERABLE
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Consideration for PGA Repair Method
•Closing the Turnpike –NOT PREFERABLE
•Closing PGA Ramp –NOT PREFERABLE
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Consideration for PGA Repair Method
•Closing the Turnpike –NOT PREFERABLE
•Closing PGA Ramp –NOT PREFERABLE
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Consideration for PGA Repair Method
•Closing the Turnpike –NOT PREFERABLE
•Closing PGA Ramp –NOT PREFERABLE
•N.B. On/Off Traffic = 9,000 Vehicles per day
•$5,220 per day in Tolls
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Repair Options
•Replacement
–Turnpike Shut Down
–Costly
•Steel Jacket
–Fabrication
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Repair Options
•Splice and Preload
–Close PGA Ramp
•External Post
Tensioning
–Exposed to future
impacts
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Carbon Fiber Reinforcing Polymer Wrap
Single Night Time Lane
Closures
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repairs
Concrete Demo
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repair
Cable Splice
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repairs
Reform Beam
￿Full Depth Repairs
￿High Early Strength
￿Partial Depth
￿Repair Mortar
￿Epoxy Injection
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRPDesign
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Design
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repair Procedure
Primer coat of adhesive is applied
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repair Procedure
CFRP is Applied
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repair Procedure
Saturation adhesive applied
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repair Procedure
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Repair Procedure
Finished Product
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Origination
•Originally used in 1950’s in the Aerospace
Industry
–8 –10 times stronger than steel
–5 times lighter than steel
–Doesn’t Corrode
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
FRP Uses in Infrastructure
•Structural Members
–Beams
–Rebar
•Repairs and Retrofit
–Wraps and Strips
•Impact Repair
•Corrosion Repairs
•Seismic Reinforcing
•Blast Reinforcing
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Types of FRP
•Carbon
•Aramid
•Glass
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Material Properties
•Tensile Strength
–Carbon Fiber = 550 ksi
–Steel = 60 ksi
•Capacity at PGA
–Original = 1875 Kip-Ft
–Repaired = 1935 Kip-Ft
–3% Stronger
Stress vs. Stain
0
100200300400500600
00.0050.010.0150.020.0250.03
Strain
Stress (ksi)
CFRP
Steel
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Advantages
•Strong Material
•Minimal Impact to Traffic
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario

HURRICANES
•Francis –September 5, 2004
•Ivan –September 16, 2004
•Jeanne –September 25, 2004
•Work Begins –October 4
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
45
th
St. Repair over S.B. Turnpike
•October 18
–Concrete Demo Complete
–Partial Depth Repairs Complete
–All Cables Spliced
–Beam would be poured the next night
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
45
th
St. Repair over S.B. Turnpike
•October 18
–Concrete Demo Complete
–Partial Depth Repairs Complete
–All Cables Spliced
–Beam would be poured the next night
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
45
th
St. Repair over S.B. Turnpike
•October 18
–Concrete Demo Complete
–Partial Depth Repairs Complete
–All Cables Spliced
–Beam would be poured the next night
•Bridge to open the next week
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
October 19, 2004
•Overheightvehicle traveling S.B. on the
Turnpike hits the 45th St. Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
October 19, 2004
•Overheightvehicle traveling S.B. on the
Turnpike hits the 45th St. Bridge
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
October 19, 2004
•Overheightvehicle traveling S.B. on the
Turnpike hits the 45th St. Bridge
•Direct Impact to Exposed PrestressStrands
–All of the Spliced Strands were severed
–All of the exposed strands were severed
–22 Severed Strands
–Damaged Form Work
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Revaluation of 45
TH
St. Repair
•Abandoned CFRP Repair on the Fascia
Beam
•Complete Replacement = Turnpike Closure
–Undesirable
•Steel Carrier Beam
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Steel Carrier Beam
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Steel Carrier Beam Advantages
•NO Demo of Deck = NO Turnpike
Closure
•Beam placement with Traffic Pacing
Plan
•All other work accomplished with
Single Lane Closures
•Work Started on November 2, 2004
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Steel Carrier Beam
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Steel Carrier Beam
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Steel Carrier Beam
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Steel Carrier Beam
45
th
St. Bridge Open to Traffic on November 17
CFRP Repairs Continued
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Repair Time
•CFRP Repairs
–39 working nights
•8 Beams with CFRP Repair
•20 patching repairs
•Steel Carrier Beam
–8 working nights
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Repair Cost
$366,372 (Repair and MOT)
45th St. Steel
Beam
$429,168 $118,974 $310,194 Total
$170,984$45,720 $125,262
PGA. S.B.
CFRP
$168,756 $49,680 $119,076
45th St. S.B.
CFRP
$89,430 $23,574 $65,856
45th St. N.B.
CFRP
TotalMOTRepairLocation
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Future
•45
th
St. Bridge Replacement
•OverheightVehicle Detection System
•Bridge Raising
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
CFRP Advantages
•Single Night Time Lane Closures
•Strong Material
•Economical
Facilities Management Workshop
May 14-18, 2005
￿
￿￿￿
Toronto, Ontario
Questions?